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29786389397 = 107464959879
BaseRepresentation
bin11011101111011010…
…000011101110010101
32211212212100100201022
4123233122003232111
5442000303430042
621403401410525
72103064063262
oct335732035625
984785310638
1029786389397
11116a5705246
125933499a45
132a690539ab
141627d22269
15b94ed1cd2
hex6ef683b95

29786389397 has 8 divisors (see below), whose sum is σ = 30071736000. Its totient is φ = 29501172064.

The previous prime is 29786389351. The next prime is 29786389411. The reversal of 29786389397 is 79398368792.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-29786389397 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 29786389397.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29786388397) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 467504 + ... + 527382.

It is an arithmetic number, because the mean of its divisors is an integer number (3758967000).

Almost surely, 229786389397 is an apocalyptic number.

It is an amenable number.

29786389397 is a deficient number, since it is larger than the sum of its proper divisors (285346603).

29786389397 is a wasteful number, since it uses less digits than its factorization.

29786389397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64635.

The product of its digits is 246903552, while the sum is 71.

The spelling of 29786389397 in words is "twenty-nine billion, seven hundred eighty-six million, three hundred eighty-nine thousand, three hundred ninety-seven".

Divisors: 1 107 4649 59879 497443 6407053 278377471 29786389397